An automatic chamfering device for rivets in a curved wheel brush

Abstract

The application discloses a kind of automatic chamfering devices of inner rivet of spiral wheel brush, comprising: machine table;Inner rivet vibration disc, install in the upper side of the machine table;Chamfering assembly, install in the side of the inner rivet vibration disc, chamfering assembly includes first fixed support and male die moving plate, first fixed support and male die moving plate are respectively installed with chamfering recess die and chamfering male die corresponding, chamfering recess die and chamfering male die respectively axial through setting with inner rivet positioning rod and inner rivet guide rod, inner rivet positioning rod is driven by second cylinder and is axially moved, inner rivet guide rod and male die moving plate are driven by chamfering drive assembly and are axially moved;Inner rivet storage box, vertically between inner rivet vibration disc and chamfering assembly;Moving block, transversely set in the lower end side of the inner rivet storage box, by first cylinder driven transversely moves.The present application can solve the problem that the existing inner rivet chamfering needs manual operation, safety and production efficiency cannot be guaranteed.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of wheel brush production equipment, in particular to an automatic chamfering device for inner rivets of a curved wire wheel brush. BACKGROUND

[0002] Inner rivets are essential accessories in the production process of curved wire wheel brushes, and the use amount is very large. In the production process of semi-finished curved wire wheel brushes, the rear part of the inner rivet needs to have an inclined angle to guide the insertion of the wire material. The original process is manual punch processing by employees, and the punch processing site has heavy noise. The product needs to be manually added and picked up, and the operation has safety hazards and low efficiency. Therefore, an automatic chamfering device is needed to meet the needs of large-scale chamfering of inner rivets. SUMMARY

[0003] The present application provides an automatic chamfering device for inner rivets of a curved wire wheel brush, which can solve the problem of manual operation of existing inner rivet chamfering and cannot guarantee safety and production efficiency.

[0004] To achieve the above-mentioned purpose, the present application provides the following technical scheme: an automatic chamfering device for inner rivets of a curved wire wheel brush, comprising: a machine table; an inner rivet vibrating disc installed on the upper side of the machine table; a chamfering assembly installed on one side of the inner rivet vibrating disc, the chamfering assembly comprising a first fixed support and a punch moving plate movable towards the first fixed support, the first fixed support and the punch moving plate corresponding respectively have a chamfering concave die and a chamfering convex die installed thereon, the chamfering concave die and the chamfering convex die respectively axially pass through an inner rivet positioning rod and an inner rivet guide rod, the inner rivet positioning rod is driven by a second air cylinder to move axially, the inner rivet guide rod and the punch moving plate are driven by a chamfering drive assembly to move axially; an inner rivet storage box is vertically arranged between the inner rivet vibrating disc and the chamfering assembly; a moving block is transversely arranged on one side of the lower end of the inner rivet storage box, and is driven by a first air cylinder to move transversely to move the inner rivet discharged from the lower end of the inner rivet storage box to between the chamfering concave die and the chamfering convex die.

[0005] As a preferred, the chamfering drive assembly comprises a drive oil cylinder and a die handle connected with the extension rod of the drive oil cylinder, the die handle is connected with one end of the inner rivet guide rod, and a push block for pushing the punch moving plate is arranged on the outer side of the inner rivet guide rod.

[0006] As a preferred, the chamfering assembly further comprises a second fixed support, the punch moving plate is arranged on one side of the second fixed support, the second fixed support is provided with a plurality of limiting screws towards the punch moving plate, and the punch moving plate retreats and abuts against the end of the limiting screw.

[0007] As preferred, the movable plate of the male die is provided with a movable plate between the second fixed support, the inner rivet guide rod is arranged through the movable plate, one end of the die handle is connected with the movable plate to fix the inner rivet guide rod with the movable plate, and the push block is detachably installed on one side of the movable plate.

[0008] As preferred, the second fixed support is connected with a plurality of guide columns between the first fixed support, and the movable plate and the movable plate of the male die are sleeved on the guide columns.

[0009] As preferred, the die handle is axially connected with the extension rod of the driving oil cylinder through a shaft coupling.

[0010] As preferred, the first end of the moving block is connected with the extension rod of the first cylinder, and the second end of the moving block is provided with a placing notch on the upper side.

[0011] As preferred, the bottom and / or side wall of the placing notch is embedded with a magnet.

[0012] As preferred, a horizontal guide rail is installed on the machine table on the inner side of the moving block, a horizontal sliding block is installed on the horizontal guide rail, and the horizontal sliding block is fixedly connected with the moving block.

[0013] Compared with the prior art, the beneficial effects of the present application are:

[0014] The chamfer assembly arranged horizontally is used to chamfer the inner rivet, which breaks away from the status quo that the chamfering needs to be performed by a punch in the prior art. The inner rivet can be automatically sent into the chamfer assembly, and the inner rivet is positioned and supported by the inner rivet positioning rod and the inner rivet guide rod inside the chamfer assembly, which facilitates the chamfering and blanking of the inner rivet, has high production efficiency, and meets the needs of mass production of the inner rivet. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is a front view of the structure of the present application;

[0016] Figure 2 is a side view of the structure of the present application;

[0017] Figure 3 is a top view of the structure of the present application;

[0018] Figure 4 is a structure diagram of the moving block of the present application;

[0019] Figure 5 is a process target schematic diagram of the inner rivet of the present application. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application.

[0021] In the chamfering process of the inner rivet of the curved wire brush, as shown in the drawings, Figure 5 The chamfering process of the inner rivet of the curved wire brush is mainly to chamfer the bent end of the semi-finished inner rivet to meet the need of threading. In the prior art, the semi-finished inner rivet is positioned axially upward on a punch, and a stamping die is used for chamfering. For ordinary technical personnel in the field, they will think of improving the chamfering efficiency. However, the main chamfering mechanism at present is realized by a punch or a vertical stamping device. Therefore, automation modification will be made around the punch or the vertical stamping device. A blanking structure and a conveying structure of the inner rivet, and a mechanical hand for placing the inner rivet on a positioning tool can be provided to realize automatic production. However, since the punch or the vertical stamping device is vertically stamped, the feeding and discharging strokes of the inner rivet are relatively long, which reduces the efficiency of automatic production. Therefore, a horizontal stamping chamfering mode is adopted in the present application to shorten the feeding and discharging strokes of the inner rivet, and the space of the punch or the vertical stamping device is not occupied.

[0022] As shown in the drawings, Figures 1-4 Specifically, the present application provides an automatic chamfering device for the inner rivet of the curved wire brush, which comprises: a machine table 1; an inner rivet vibrating disc 2 installed on the upper side of the machine table 1; a chamfering assembly 6 installed on one side of the inner rivet vibrating disc 2, wherein the chamfering assembly 6 comprises a first fixed support 11 and a punch moving plate 16 movable toward the first fixed support 11, the first fixed support 11 and the punch moving plate 16 are respectively provided with a chamfering concave die 14 and a chamfering convex die 15 corresponding to each other, the chamfering concave die 14 and the chamfering convex die 15 respectively axially pass through an inner rivet positioning rod 12 and an inner rivet guide rod 17, the inner rivet positioning rod 12 is driven by a second air cylinder 13 to move axially, the inner rivet guide rod 17 and the punch moving plate 16 are driven by a chamfering driving assembly to move axially; an inner rivet storage box 4 vertically arranged between the inner rivet vibrating disc 2 and the chamfering assembly 6; a moving block 5 horizontally arranged on one side of the lower end of the inner rivet storage box 4, driven by a first air cylinder 3 to move horizontally to move the inner rivet discharged from the lower end of the inner rivet storage box 4 to between the chamfering concave die 14 and the chamfering convex die 15.

[0023] Specifically, a plurality of inner rivets can be placed in the inner rivet vibrating disc 2. During the vibration and rotation of the vibrating disc 2, the inner rivets can move along the output track of the inner rivet vibrating disc 2 to the upper end of the inner rivet storage box 4, and then vertically downward into the inner rivet storage box 4. The vibrating disc 2 is a common feeding structure in industrial production, and the internal conveying structure can be adjusted according to the shape of the inner rivet, which belongs to the prior art. The specific structure of the inner rivet vibrating disc 2 will not be described here.

[0024] The moving block 5 can horizontally convey the inner rivet from the lower end of the inner rivet storage box 4 to the chamfering assembly 6 for chamfering. When the moving block 5 is conveyed to the position between the chamfering concave die 14 and the chamfering convex die 15, the inner rivet positioning rod 12 can extend through the inner rivet for support, and the moving block 5 can retract. The inner rivet guide rod 17 extends under the drive of the chamfering drive assembly and also extends into the inner rivet. At the same time, the convex die moving plate 16 is driven to drive the chamfering concave die 14 and the chamfering convex die 15 together to stamp and chamfer the inner rivet. After chamfering is completed, the inner rivet guide rod 17 and the convex die moving plate 16 retract, and the inner rivet can automatically fall to achieve automatic discharging.

[0025] In this embodiment, as shown in Figure 3 The chamfering drive assembly includes a drive oil cylinder 23 and a die handle 24 connected to the extension rod of the drive oil cylinder 23. The die handle 24 is connected to one end of the inner rivet guide rod 17. The outer side of the inner rivet guide rod 17 is sleeved with a push block 18 for pushing the convex die moving plate 16. The push block 18 will delay the movement of the convex die moving plate 16 when the inner rivet guide rod 17 moves. The die handle 24 and the drive oil cylinder 23 are connected to realize the connection of the drive oil cylinder 23 and the inner rivet guide rod 17.

[0026] In this embodiment, the chamfering assembly 6 further includes a second fixed support 21, which is arranged opposite to the first fixed support 11 and located at both ends of the chamfering assembly 6. The convex die moving plate 16 is arranged on one side of the second fixed support 21. The second fixed support 21 is provided with a plurality of limiting screws 19 towards the convex die moving plate 16. When the convex die moving plate 16 retreats, the end of the limiting screw 19 is abutted. The limiting distance of the convex die moving plate 16 can be limited by the limiting screw 19. When the convex die moving plate 16 cannot retreat, the inner rivet guide rod 17 will continue to retreat, so that the inner rivet guide rod 17 can be separated from the inner rivet to realize the automatic falling of the inner rivet. The length of the limiting screw 19 can be adjusted and replaced as needed.

[0027] In the embodiment, in order to improve the activity accuracy of the inner rivet guide rod 17, the movable plate 20 is arranged between the punch moving plate 16 and the second fixed support 21, the inner rivet guide rod 17 passes through the movable plate 20, one end of the die handle 24 is connected with the movable plate 20 to fix the inner rivet guide rod 17 and the movable plate 20, the push block 18 is detachably arranged on one side of the movable plate 20, a plurality of guide columns 26 are connected between the second fixed support 21 and the first fixed support 11, the movable plate 20 and the punch moving plate 16 are sleeved on the guide columns 26, and the movable plate 20 and the punch moving plate 16 are moved along the guide columns 26, so that a good guiding effect is achieved, and the chamfering accuracy is high.

[0028] In the embodiment, the die handle 24 is axially connected with the extension rod of the driving oil cylinder 23 through the shaft coupling 22, the shaft coupling 22 is divided by two split surfaces arranged along the axial direction, and the die handle 24 is connected with the driving oil cylinder 23.

[0029] As a specific embodiment of the moving block 5, as shown in the figure, Figure 4 The first end of the moving block 5 is connected with the extension rod of the first cylinder 3, the second end of the moving block 5 is provided with a placing gap 50 on the upper side, the size of the placing gap 50 is matched with the size of the inner rivet, and meanwhile, in order to prevent the inner rivet in the placing gap 50 from rolling down in the moving process, the bottom and / or the side wall of the placing gap 50 is embedded with a magnet 51.

[0030] The machine table 1 on the inner side of the moving block 5 is provided with a transverse guide rail 25, a transverse sliding block is arranged on the transverse guide rail 25, and the transverse sliding block is fixedly connected with the moving block 5.

[0031] The specific working process of the automatic chamfering device is as follows:

[0032] S1: the first cylinder 3 pushes the moving block 5 with the inner rivet to reach the “inner rivet standby position” between the chamfering concave die 14 and the chamfering convex die 15, and meanwhile, the upper plane of the moving block 5 blocks other inner rivets in the inner rivet storage box 4 from falling out;

[0033] S2: the second cylinder 13 pushes the inner rivet positioning rod 12 to the far end, the head of the inner rivet positioning rod 12 is inserted into the inner hole of the inner rivet to maintain the product in the standby position, the first cylinder 3 drives the moving block 5 to return, and the inner rivet at the bottom of the inner rivet storage box 4 falls into the placing gap 50 of the moving block 5 under the action of gravity and waits;

[0034] S3: the driving oil cylinder 23 pushes the inner rivet guide rod 17 and the push block 18 forward through the die handle 24, the inner rivet guide rod 17 is first inserted into the inner hole of the other side of the inner rivet, and the inner rivet positioning rod 12 is passively retreated under the pressure of the oil pressure; later, the push block 18 pushes the chamfering punch 15 to also contact the inner rivet, and the inner rivet guide rod 17 and the chamfering punch 15 jointly push the inner rivet into the chamfering recess 14 and complete the chamfering action. In the process of retreat of the inner rivet positioning rod 12 under pressure, the second cylinder 13 is triggered to complete active retreat through a preset induction switch, so as to avoid damage caused by excessively high pipeline gas pressure.

[0035] S4: the driving oil cylinder 23 drives the inner rivet guide rod 17 to retreat through the die handle 24, drives the chamfering punch 15 to retreat through the friction between the inner rivet guide rod 17 and the inner hole of the inner rivet, drives the limiting screw 19 to stop the retreat of the chamfering punch 15 after a certain distance, and the inner rivet guide rod 17 continues to retreat, so that the inner rivet is extruded and falls into the basket under the workbench through the "blanking opening" on the machine 1 under the influence of gravity.

[0036] S5: the procedures S1-S4 are cyclically executed.

[0037] During this period, the staff only needs to monitor the material storage condition of the vibration disc, and can add materials.

[0038] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative position relationship, movement condition, etc. between components in a certain specific posture (as shown in the drawings), and if the specific posture changes, the directional indications also change accordingly.

[0039] In addition, the description such as "first", "second" and the like in the present application is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can be explicitly or implicitly included at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0040] In the present application, unless otherwise specifically defined and limited, the terms "connection", "fixation" and the like should be understood in a broad sense, for example, "fixation" can be fixed connection, or detachable connection, or integral; can be mechanical connection, or electrical connection; can be directly connected, or indirectly connected through an intermediate medium; can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise specifically limited. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0041] In addition, the technical solutions among various embodiments of the present application can be combined with each other, but it must be based on that a person skilled in the art can realize, when the combination of technical solutions appears contradictory or cannot be realized, it should be considered that the combination of technical solutions does not exist, and is not within the protection scope required by the present application.

Claims

1. An automatic chamfering device for the inner rivets of a curved wire brush, characterized in that, include: Machine (1); An internal rivet vibratory plate (2) is installed on the upper side of the machine base (1); A chamfering assembly (6) is installed on one side of the inner rivet vibratory plate (2). The chamfering assembly (6) includes a first fixed bracket (11) and a punch moving plate (16) that can move toward the first fixed bracket (11). A chamfering die (14) and a chamfering punch (15) are respectively installed on the first fixed bracket (11) and the punch moving plate (16). The chamfering die (14) and the chamfering punch (15) are respectively axially passed through an inner rivet positioning rod (12) and an inner rivet guide rod (17). The inner rivet positioning rod (12) is driven to move axially by a second cylinder (13). The inner rivet guide rod (17) and the punch moving plate (16) are driven to move axially by a chamfering drive assembly. An inner rivet storage box (4) is vertically arranged between the inner rivet vibratory plate (2) and the chamfering assembly (6); The moving block (5) is horizontally positioned on one side of the lower end of the inner rivet storage box (4). Driven by the first cylinder (3), it moves laterally to move the inner rivets that are fed from the lower end of the inner rivet storage box (4) between the chamfering die (14) and the chamfering punch (15). The chamfering drive assembly includes a drive cylinder (23) and a die handle (24) connected to the extension rod of the drive cylinder (23). The die handle (24) is connected to one end of an inner rivet guide rod (17). A push block (18) for pushing the punch moving plate (16) is sleeved on the outside of the inner rivet guide rod (17). The push block (18) can push the punch moving plate (16) to move after a delay when the inner rivet guide rod (17) moves. The chamfering assembly (6) further includes a second fixed bracket (21), and the punch moving plate (16) is disposed on one side of the second fixed bracket (21). The second fixed bracket (21) is provided with a plurality of limiting screws (19) facing the punch moving plate (16). When the punch moving plate (16) retracts, it abuts against the end of the limiting screw (19). A movable plate (20) is provided between the punch moving plate (16) and the second fixed bracket (21). The inner rivet guide rod (17) passes through the movable plate (20). One end of the die handle (24) is connected to the movable plate (20) to fix the inner rivet guide rod (17) to the movable plate (20). The push block (18) is detachably installed on one side of the movable plate (20).

2. The automatic chamfering device for the inner rivets of the curved wire brush according to claim 1, characterized in that: The second fixed bracket (21) is connected to the first fixed bracket (11) by a number of guide posts (26), and the movable plate (20) and the punch moving plate (16) are both sleeved on the guide posts (26).

3. The automatic chamfering device for the inner rivets of the curved wire brush according to claim 1, characterized in that: The mold handle (24) and the extension rod of the drive cylinder (23) are axially connected by a coupling (22).

4. The automatic chamfering device for the inner rivets of the curved wire brush according to claim 1, characterized in that: The first end of the movable block (5) is connected to the extension rod of the first cylinder (3), and the upper side of the second end of the movable block (5) is provided with a placement notch (50).

5. The automatic chamfering device for the inner rivets of the curved wire brush according to claim 4, characterized in that: Magnets (51) are embedded in the bottom and / or sidewall of the placement notch (50).

6. The automatic chamfering device for the inner rivets of the curved wire brush according to claim 1, characterized in that: A transverse guide rail (25) is installed on the machine base (1) inside the movable block (5), and a transverse slider is installed on the transverse guide rail (25). The transverse slider is fixedly connected to the movable block (5).

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